Technical Specification

Introduction date:
Clock Speed:
CPU:
ACT Address Space:
Memory:
Display:
Program Memory:
Precision:
Entry Method:
Size:
New price:
1. July 1977
0,18 MHz
Arithmetic, Control and Timing chip (ACT): 1820-1596
12 Bit
30 storage registers, C-MOS technology
light emitting diode, 10 digits, red
98 program steps
10 digits
Reverse Polish Notation
127 mm x 63,5 mm x 25,4 mm (5" x 2.5" x 1")
195 USD

History

The HP-29C was the last calculator of the Woodstock family or "Series 20". The codename  of  it was "Bonnie".
The HP-29C was followed by a printing version, the HP-19C and these two were called "Bonnie & Clyde".
The heart of these calculators was the the ACT (
Arithmetic, Control and Timing chip). For reducing cost and size this
chip integrated arithmetic, register, control, -and clock driver circuit into a single package.
The chip was able to address 4096 instructions directly with its 12 bit address space.


HP-29C

...the nice led display...


...the nice brain in white ceramic and gold...

...the nice brain of the HP-29C...


...under the display, the keyboard and display driver...

...the display...